Clamping device for paper boxes.



C. T. DUNN.

CLAMPING DEVICE FOR PAPER BOXES.

APPLICATION FILED JAN.3,1914- Patent-ed May 4, 1915.

3 SHEETS-SHEET l- 3 rwew-f 01,

/vifwam e0 C. T. DUNN.

CLAMPING DEVICE FOR PAPER BOXES.

APPLICATION FILED mm. 1914.

Patented May 4, 1915.

3 SHEETS-SHEET 2;

@Q? H jj C. T. DUNN.

I CLAMPING DEVICE FOR PAPER BOXES.

. APPLICATION FILED JAN- 3. 1914. 1,138,200,

barman snares cnazenns r DUNN,

or, NEWARK, .OHIo.

CLAMPING- DEVICE FOR PAPER BOXES.

Specification of Letters Patent:

l Application filed January 3, 1914. Serial No. 810,240.-

To all whom it may concern Be it known that 1, CHARLES T. DUNN, a

"citizen of the United States, residing at nected to the Walls.

Newark, in the county of Licking and State of Ohio, have invented certain new and useful Improvements in Clamping Devices for Paper Boxes, of which the following is a specification.

v This invention relates to a machine for holding a box in a set up position, while the walls, top, and bottom are adhering to each other. 7

One of the objects of the invention is to provide the device with improved means for holding the top and bottom in tight engagement with the walls so that when the glue placed upon the edges of the walls hardens, the top and bottom will be securely con- Another object of the invention is to so construct the clamp which engages the lidengaging-member that the clamp may be releasably held in a position to hold thelidelrligalgcilng member in tight engagement with t e i Another object of the invention is to pro glue receptacle and for supporting the clamps when the clamps are not in use.

Another object of the invention is to so construct the clamps that the clamps may form means for supporting the lid-engaging cover when it is not desired to raise the cover the full extent. v

Another object of the invention is to provide a device which will permit the machine to be used in connection with various sizes of boxes.

This invention is illustrated in the accompanying drawings wherein Figure 1 is a perspective view of the machine; Fig. 2 is an end elevation of the machine; Fig. 3 is an elevation of the device' which supports a small box; Fig. 4 is a fragmentary view showing the manner of-pivotally mounting .one of the latch-holding levers; Fig. 5 is a sectional view taken along the line 55 of Fig. 4:; Fig. 6. is a perspective view of a plate which is secured to one of the covers and carries a pin engaged by the latch; Fig. 7 is a perspective view of the upper end portion of one of the lovers with the latch pivotally connected thereto; and Fig. 8 is a perspective view of thev plate with which the lever shown in Fig. 5 is pivotally connected.

The frameof this machine is in the form 1 of abench comprising the bottom 10 which carried the rear wall, 11, and is supported by the corner legs 12. This bottom 10 is preferably formed of heavy sheet metal, and has its forward edge portion-bent to form the flange 13 which extends upwardly for a short distance. Cleats 14 are secured to the rear wall 11 andare'positioned so that the boxes will fit between the cleats and be-prevented from moving out. of the 1 desired position.

In order to-support a 'glue pot 15 there has been provided a cross bar 16 which has one end portion bent to form a foot 17 secured to the rear; Wall, and has its outer-end portion bent to form a standard 18 which terminates in legs 19 secured to the flange 13. The yoke 20 in which the glue pot -15 fits is located intermediate the standard 18 and foot 17 so that the pot of glue will be positioned intermediate the length of the a Patented Ma a, 1915.

table and thus be convenient to reach. An

arm 21 extends upwardly from the standard 18 and carries fingers 22 which form'pockets in which levers 23 rest when not in use.

These levers 23 are pivotally mounted, each of the'levers being mounted upon a bushing 24: carried by the threaded stem 25 extend; ing from the bracket plate 26. The upper .endof each lever is curved as shown at 27 and is perforated to form pivot ears 28 be-' tween which the latch 27 is pivotally m0iint-' Wall by means of the hinges 33 and carry plates 34 from which there extends the stems '35 which pass into the notches 3 6 ofthe latches 29. These covers 32 are provided the latch in a with flanges 37, which flanges are intended to fit over the upper edges of the boxes to hold the boxes in the proper shape while the lids of the boxes are being glued in place.

Resilient strips 38 are provided to support the covers when they are raised the full extent in order to remove the sealed boxes from the table. These boxes fit rather tightly in the machine and therefore openings39 have been provided in the rear wall beneath the covers 32 so that the operator of the machine may obtain a good grip upon 7 the, box. In Fig. 3 there has been shown a 1 frame which may be used when it is desired to seal relatively small boxes. This frame comprises the base 40 from which there extends the rear wall 41 and the short forward wall or flange 42. Spacing strips 43 extend from the rear wall 11 to hold the wall 41 in spaced relation to the wall 11.

The operation of this machine is as follows: The boxes are received in a knockeddown condition and when it is desired to use the same, the strip which forms the walls is bent to assume theposition shown in Fi 1, and the bottom flaps are then glued toget er. This box is then placed in the machine and fits between the rear wall 11 and front flange 13 with the side walls fitting between the cleats 14. The box is then filled with any desired material and after glue has been applied to the top flaps of the box, the top flaps are bent down and the cover 32 is lowered to the position shown at the left of Fig. 1. The latch is then brought into engagement with the stem 35 and the handle is moved downwardly to rock the lever 23 to the position shown. latch are in the position shown at the left of Fig. 1, the lever will remain in this position and can not possibly slip out of position shown, since it requires cori siderable effort to move the lever to the position shown. After the box has remained in the machine a suflicient length of time for the glue to harden, the lever is released and the cover can then be -raised to the position shown in Fig. 2 and the box removed by inserting one hand in the pocket 39 and tilting the box forwardly. When the cover is in the raised position shown-in Fig. 2, the lever will be swung toward the center of the machine and will be supported by the arm 21. If it is no longer desired to use the machine, the lever may be left in substantially the position shown at the left of Fig. 1; and the stem 35 can be moved into engagement with the small hook s shaped bracket 44 carried by the lever. The head at the outer end of the stem 35 prevents the stem from accidentally moving out of engagement with the bracket. The frame shown at the left of Fig. 1 is only used when it is desired to set up boxes" which are smaller than the box shown at the right of Fig. 1.

. What is claimed is:

1. A machine of the character described comprising a table, a rear wall carried-by said table a forward flange carried by said table, a cover hinged to said rear wall, a lever pivotally connected with said forward flange, means carried by said lever for en- VVhen the lever and.

in presence of two gaging said cover whereby said lever may be said table, a forward flange carried by said table, a cover hinged to said rear wall, a

standard carried by. said flange, clamping means carried by said-flange and releasably engaging the free-end portion of said cover, and means extending from said standard for supporting said clamping means when the same is out of engagement with said cover.

3. A machine of the character described comprising a support, a cover hinged to said support, a stem extending from said cover, a lever pivotally connected with said support and provided with a curved upper end portion, a latch pivotally connected with said lever and provided with a notch for engaging said stem, a handle carried by said latch,,and a bracket carried by the free end portion of said lever and provided with a notch for receiving said stem.

4. A machine of the character described comprising a support, a pivoted pressing element, a clamping element for releasably engaging said pressing element, a standard secured to said support and having its upper end portion bent to form a bar extending transversely across said support, means extending from said standard for supporting said clamping means when said clamping means is not in use, and means carried by said support for limiting the pivotal movement of said pressing means in one;

direction. r

5.. Aimachine of the character described comprising a table, a rear wall carried by said table, a forward flange carried by said table, a frame carried by said table between said rear wall and flange, said frame comprising a base, a forward flange, a rear wall,

spacing strips carried-by the rear wall to said frame and engaging the rear wall of said table, pressing means carried by the rear wall of said table, and clampin means carried bythe forward flange of said table and 'releasably engaging said ressing means. In testimony whereof I a v x my slgnature witnesses. 7 CHARLES T. Witnesses:

FRED. P. BAKER,v EARL W.

DUNN. v 

